Get a routine and stick to it! This site has a lot of good resources on workouts, exercises, routines, nutrition, and the forums are packed with stories and advice from guys who know what they're talking about. Do your research, get yourself to a gym where you feel comfortable, learn the basics, and then go hog wild!

I do sit ups, leg raises, crunches, etc. I have been doing them every day for a month. My stomach looks bigger to me. It is a lot harder but I feel like it looks fat. Is it normal to get bigger before it gets smaller? Also what can I do for my chest? I have none. My ribs are the biggest part of my torso.

Yes. When you work out, your tissues swell. It's the same thing that in a few more months with have you stopping to note how unusually swole you look right after a workout.

There are others so much better qualified to give workout advice than me, but patience. Change will come in small increments. And in your fervor to effect change as fast as you can, don't overdo it and injure yourself.

Thanks Guys, I appreciate your help. I know it sounds like I am expecting big changes in 3 weeks. I am not at all. It is the first time I took pictures of my body. I just didn't like waht I saw. Lostboy, I would never guess that you had the issue with the ribs. You look awesome! If I can get myself to look half as good as you do I would be so happy. Thank you so much for the advice.

Keep your routine. Increase the intensity (either higher weights or higher reps) when it becomes easy.Keep your diet, and adjust as necessary for energy and proper nutrition as your workouts increase (more exertion = more need for food).Get plenty of sleep, because that's when your body repairs itself and makes gains.Last but not least: Patience! That is the key to pretty much everything in life.

Good luck!

PS. Stay off the scale, and stop taking self-pics for the next month or two. They will only disappoint. Give your body time to adjust, then you'll be amazed at the progress.